INTRODUCTION TO SOFTWARE ENGINEERING
OVERVIEW OF SOFTWARE ENGINEERING
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Question
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Use Case
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User Goal Technique
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Event Decomposition
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User Story
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Detailed explanation-1: -One approach to identifying use cases, called the user goal technique, is to ask users to describe their goals for using the new or updated system. The analyst first identifies all the users and then conducts a structured interview with each user.
Detailed explanation-2: -Use cases are thus, a combination of existing system functions and newly requested functions. Another technique used for identifying use cases is CRUD, an acronym for Create, Read or Report, Update and Delete.
Detailed explanation-3: -A use case is a methodology used in system analysis to identify, clarify and organize system requirements. The use case is made up of a set of possible sequences of interactions between systems and users in a particular environment and related to a particular goal.
Detailed explanation-4: -A use case must yield an observable result that is of value to the user of the system. An actor represents a role of a user that interacts with the system that you are modeling. The user can be a human user, an organization, a machine, or another external system.